Optician s tool



Apr. no, 1923. www@ Y .1.7M LAWLOR OPTIGIAN s TOOL Filed May 20, 1921 may eE/ames/W .Lan/Zar:

Q4 TTORNEY Patented pr. lO, i923.

iastate JAMES M. LAWLOR, OF TOPEKA, KANSAS, ASSIG'NOR OF ONE-HALF TO T. E. CUTSINGER,

OF TOPEKA, KANSAS.

OPTICIAN S TOOL.

Application led May 20, 1921.

To all whom il? may concer/n Be it known that l, JAMES M. LAwLoR, a citizen of the United States, residing at Toy peka, in the countyl of Shawnee and State o of Kansas, have invented certain new and useful improvements in Opticians Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to Opticians tools and particularly to a tool adapted to be used as a pincers or clamp for assembling eyeglass mountings, for effecting adjustments and for use in connection with the general 2o organization of such mountings, the invention being particularly applicable for remounting and replacing lens frames.

One of the purposes of my invention is to provide a tool which is capable of eHectively crimping or pincing the rim clamps at the ends of the bridge piece to the lens frames in such a manner that a tight union will be provided between the clamped lens frames and between the lens frames and the lenses without liability of crushing the edges of the lenses.

It is also the purpose of my invention to provide an improved tool which is adapted to be utilized as a hand clamp for eiiiciently holding the mounting so that the bridge may be bent to provide the proper adjustment to conform to the shape of the nose of the person wearing the glasses, the device being also capable of holding the mounting in clamped position for effecting the requisite adjustments and assembly of the nose clamp, linger pieces, etc.

There is means provided for holding the lensframe in proper position with respect i5 to the rim clamps preparatory to effecting the crimping or pincing operation.

Means is also provided for expanding the rim clamps land for efliciently holding the eye-glass mountings so that they can be worked upon.

Among the manifold advantages of my invention is the provision of means whereby the jaws of the tool will be normally closed so as to hold the work without requiring pressure on the handles, the handles being Serial No. 471,138.

pressed to release the work. The jaws clamp the frame and the clamps for the frame. These jaws7 in their operative position, are at right angles to the plane of the Jframe so that pressure across the plane of the frame will be exerted in opposite directions and in such a manner that the requisite amount of pressure can be had to cause the clamps to grip over the celluloid frame. The clamping jaws are adapted to engage the clamps without the necessity of removing the nose clamps or guards, the springs or the screws from the nose pieces, an advantage over known types of Opticians tools.

Another advantage is that the clamps can be tightened on the frame without removing the lenses and when it is necessary to repair the lens mountings, the celluloid frames can be burnt out of the clamps and the clamps expanded to receive the rims of the frames, which may be held in place until they are secured by pressure from the tool to cause the clamps on the nose pieces to properly engage them.

The particularly| novel features of my inn vention will be apparent by reference to the accompanying drawings, in which Fig. l is a perspective view of a tool constructed in accordance with my invention.

Fig. 2 is a similar view of the side opposite to Fig. l.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2.

Fig. l is a perspective view of the upper portion of the tool, showing it in operative position.

Fig. 5 is a cross sectional view through the tool, showing the lens frame positioning member.

Fig. 6 is an enlarged elevational View showing the expanding jaws in functional position, and

Fig. 7 is a perspective view of the upper portion of a modified form of tool.

l designates a. rigid jaw at the end of a handle or grip 2 rigid therewith. The jaw l consists of a straight bar against which one edge of a complementary or movable jaw bar 3 bears, the movable jaw having sliding contact therewith through the medium of a handle or grip l1which is pivoted thereto at 5 and which has a laterally pro- 'ecting arm 6 pivoted to the rigid jaw l at J7 The movable j aw has a lateral extension or beak 8, which has parallel movement with iti respect to the co-operating tace 9 at the upper end of the bar or jaw l and it is normally held in gripping position by a tension spring. l0, one end or which is tastened to the movable jaw at ll and the other end to the rigid aw at l2 (see Fig, l). Therefore, the tivo aWs Will be held in co-operative position and the gripping'tace oit one janv Will always be parallel with the gripping@` tace of the other` javito exert a uniform pressure on the rim clamps or lens trames or both when the device is functioning.

Thejjaiv bars l and 3 are held in intimate Contact by a loop or strap which is rigid with the rigid au' and embraces part oilI the movable avv, as clearly seen in lilies. l and 2.

rhe jaivs can he spread apart by spreading the handles 2 and nd since the spring ttl tends to close the jaws, it will be apparent hat in order to ajrip the material, the handles 2 and stn'iust he moved apart and as soon as pressure is rel aseth the spring will j bring the jaws bach to clamping position.

ril he right angular portion fl oi the jaw bar is provided with a grroort il in line with a groove l5 in the rigid jaw l. vrilhis is tor the purpose oit permitt; y the -i'inger piece lr6 to lie in the groove 11i and the nose clamp stem 17 for the nose clamp i8 to lie in the groove l5., the .nose clamp llo lacing receivable in the 'transverse groove if) in the janv l and the aligning recess 2U in the aw stein or bar 3. rlhe `grooves allovf the ja'ivs to readily clamp the clamps 2l on the ends ot the bridge 22'and cause the clamps to bind upon the grooved 'traine-s to secure the lenses in place.

The jaws l and 3 are provided with grooves 2st and 25 to provide tor the transverse curvature of the 'trai und the jaws lengthwise are preferably Jormed on arcs shorter than the arcs Afrom which Athe curved portions of the clamps 2l are ii'ormed so that the edges oit the clamps will be ti `Q'htly bound upon the trames 23. V

llt `is to be understood, ot course7 that the mounting may he inverted with respect to the position shown in Fig. il; if desired, but ordinarily, the clampslfl will be pinced upon the trames to the position shown although I do not Wish to he limited to this particular position oit thetool in mairinp` the adjustments.

handle is prmfided with a shoulder 26, against which the lower edge 2T ot the handle 4V; mayV rest so that the clamping); movement et the jaw portions 8 and 9 Will he limited to` prevent the jaws coming` too tightly together so as to crush the clamps 2l. In other Words the meetinfr faces ot the jaws may come too; .her sutlicieiitly to crimp theclamps 2l but not sutlieient to (rush themT v The jaw bars l and il are provided With expander elements which :consist of two normally open7 groove ing heals or blades and project irom the front edge ot the riait'. ha The blade or heal; is cai iid by a tlshaped strap or having side bars 8O and a t'ulcrum member cross har 3l, the latter carryingl the heult 28. The side bars 230 are pivoted to the rigid jaw bar l and to the movable jar( bar at 32 and 32 respectively. rheretore when there is relative longitudinal ni' ement he tween the bars there will be t ting movement oi the heult The is provided with a supporting bri t portion Sil? which is fastened to the rigid jaw member by a fastening device shown a screwv Bel.

By reference to l it vwill he observed that the expanders are normally open or moved into expiindiing position when the handles 2 and are spread apart. llo-Wever, the tivo expanding' morali-ers 28 and come together so that they tan be inserted int-o the groove ot "he clamp 2l. Then by exert ingV pressure on the grips ot the handles and l? the expandufs can he mov d apartto open up the crimped clamp 2l so as to leave the groove wide enough to receive the lens Yframe 23.'

An important feature ol my invention the means for positicuiinggthe lens trame in the clamp 2l preparatory to exerting the crimping or clamping' action thereupon by the jaw faces 8 and 9. This cont of a spriiig-retracted, pivoted lens-trame-hol di ,et linger. By reference to Fig., 3 it Will be observed that spring-retracted pin passes through the rigid jan7 member l and on one side ot the jaiv member is a coil spring 35@ one end oi"- Wiiich bears against the jaiv har l and the other against the head or button. 236 on the end oi" the pin The other end ot the piu extends beyond the opposite tace of the jaw bar l and rigidly supports a sleeve 3T, in the upper portion of which is an elongated slot 38, through which projects a stud 39 supporting' a lens-ri1nengaging' lingers l() having` a beak 41 at right angles to its upper edge and adapted to engage in the groove l2 of the lens trame 23 to hold it in intimate engagement ivith the clamp 2l While the jaws 8 and 9 are expanded preparatory to applying` pressure.

It Will be observed that the linger 40 vertically adjustable with respect to the sleeve 38 so that it can find the center et the groove of the lens :trame 23 and that the sleeve 3.7 is rigid on the pin 35 and the pin 35 rotatable Within the javv bar l as Well as having,` spring-retracted longitudinal movement with respect thereto so that the lens frame positioning device can be moved out ot functional position it desired by simply pressing on the button 36 and using it to turn the pin 35, the linger 40 having swinging movement about the axis o' the pin 35, as will be clearly apparent by reference to Fig. 8.

It will be apparent from the foregoing description in connection with the accompanying drawings that a novel form of opticians tool is provided, which is capable of assisting in the repairing of spectacles, nose glasses and the like so that the necessary repairs can be made.

In Fig. T I have shown a slightly modi ned form of too-l in which the jaw 8 is provided with a notch 43, aligning with the notch 4A in the jaw bar l to receive the side bar l5 of a nose piece 46 for spectacles so that there will be room enough to receive the clamp corresponding to clamp 21. The spectacle nose piece 46 is shown in dotted lines so as not to obstruct the position of the jaws shown in the modification.

What I claim and desire to secure by Letters-Patent is:

l. In a tool of the class described, a rigid jaw member, a movable jaw member slidable with respect to the rigid jaw member, means for actuating the slidable jaw member to bring the eifective parts of the jaw members together to clamp the frame clamps of an eye-glass mounting, and a frame positioning and holding means carried by the rigid jaw member for holding the frame in the groove in the clamp of the eye-glass mounting.

2. In a tool of the class described, a rigid jaw member, a movable jaw member slidable with respect to the rigid jaw member, means for actuating the slidable jaw member to bring the effective parts of the jaw members together to clamp the frame clamps of an eye-glass mounting, and a spring-actuated frame holding member carried by the rigid jaw member for holding the frame in the groove in the clamp of the eye-glass mount- In a tool of the class described, a rigid jaw member, a movable jaw member slidable with respect to the rigid jaw member, means for actuating the slidable jaw member to brin the effective parts of the jaw members toget er to clamp the frame clamps of an eye-glass mounting, and a spring-actuated lens frame holder rotatable about a fixed axis so that it may swing into and out of functional position and capable of holding the lens frame in engagement with the nose piece clamp so that the jaws of the tool may clamp the tool together.

4. In a tool of the class described, two cooperating jaw members, one of which is relatively rigid and the other of which has relative movement with respect thereto, an outstanding lip on the outer edge of the rigid member, a swinging lip in line with the first named lip and pivotally connected to the rigid member, and means co-operating with the movable member to cause the swinging lip to move toward and away from the rigid lip when the movable member has movement imparted to it. j

5. In a tool of the class described, two co-operating jaw members, handles for operating them, one of the jaw members consisting of a bar and the other having a right angular projection and provided with a cross groove in the projection and a transverse groove in the main portion of the j aw member, the other jaw having a longitudinal groove coinciding with the rst named groove in the complementary jaw, and means for actuating said jaws.

In testimony whereof I affix my signature.

JAMES M. LAWLOR. 

